Display Stp Down-Port; Display Stp History - H3C MSR 20-20 Command Reference Manual

display stp down-port

Syntax
View
Parameters
Description
Examples

display stp history

Syntax
View
Table 104 Description on the fields of the display stp abnormal-port command
Field Description
MSTID MST instance ID
Blocked Port Name of blocked port, which corresponds to the related MST instance
Reason Reason that caused abnormal blocking of the port.
■
■
■
display stp down-port
Any view
None
Use the
display stp down-port
blocked by STP protection actions.
These actions include:
BPDU attack guard action
■
MSTP BPDU format compatibility protection action
■
# View the information about ports blocked by STP protection actions.
<Sysname> display stp down-port
Down Port
Ethernet1/0
Ethernet1/1
Table 105 Description on the fields of the display stp abnormal-port command
Field
Down Port
Reason
display stp [ instance instance-id ] history
Any view
ROOT-Protected: root guard action
LOOP-Protected: loop guard action
Formatcompatibility-Protected: MSTP BPDU format compatibility
protection action
command to view the information about ports
Reason
BPDU-Protected
Formatfrequency-Protected
Description
Name of blocked port
Reason that caused the port to be blocked.
BPDU-Protected: BPDU attack guard action
■
Formatfrequency-Protected: MSTP BPDU format compatibility
■
protection action
601